Question

what temperature do solids change to become gas and what temperature do liquids change to become solid and what temperature do gasse change to become liquid/solid

Answer 1

Pick a number and you will be correct for all three. Why? Because all elements, copounds, mixtures, etc have, as an intrinsic property, a freezing point, a boiling point, etc. And these numbers vary all over the map for the hundreds of elements which we know about as well as the thousands of compounds which we know about.